Personalized My Yia Yia Loves Me YiaYia for Grandchild Youth Long Sleeve T-Shirt. Cute boho style moon with stars for a newborn baby boy or girl from their Yia Yia grandma. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)